def test(self):
img = QImage(100, 100, QImage.Format_ARGB32)
img.fill(Qt.green)
p = QPainter(img)
pix = QPixmap(10, 10)
pix.fill(Qt.red)
frgmts = [
QPainter.PixmapFragment.create(
QPointF(25, 25),
QRectF(0, 0, 10, 10),
5., 5.,
),
QPainter.PixmapFragment.create(
QPointF(75, 75),
QRectF(0, 0, 10, 10),
5., 5.,
)
]
p.drawPixmapFragments(frgmts, pix)
p.end()
self.assertEqual(QColor(img.pixel(10, 10)), QColor(Qt.red))
self.assertEqual(QColor(img.pixel(80, 80)), QColor(Qt.red))
self.assertEqual(QColor(img.pixel(90, 10)), QColor(Qt.green))
self.assertEqual(QColor(img.pixel(10, 90)), QColor(Qt.green))
def innerGlowBackgroundPixmap(color, size, radius=5):
""" Draws radial gradient pixmap, then uses that to draw
a rounded-corner gradient rectangle pixmap.
Args:
color (QColor): used as outer color (lightness 245 used for inner)
size (QSize): size of output pixmap
radius (int): radius of inner glow rounded corners
"""
key = "InnerGlowBackground " + \
color.name() + " " + \
str(radius)
bg = QPixmapCache.find(key)
if bg:
return bg
# set background colors for gradient
color = color.toHsl()
light_color = color.fromHsl(color.hslHue(), color.hslSaturation(), 245)
dark_color = color
# initialize radial gradient
center = QPoint(radius, radius)
pixRect = QRect(0, 0, radius * 2, radius * 2)
gradientPixmap = QPixmap(radius * 2, radius * 2)
gradientPixmap.fill(dark_color)
# draw radial gradient pixmap
pixPainter = QPainter(gradientPixmap)
pixPainter.setPen(Qt.NoPen)
gradient = QRadialGradient(center, radius - 1)
gradient.setColorAt(0, light_color)
gradient.setColorAt(1, dark_color)
pixPainter.setBrush(gradient)
pixPainter.drawRect(pixRect)
pixPainter.end()
# set tl and br to the gradient's square-shaped rect
tl = QPoint(0, 0)
br = QPoint(size.width(), size.height())
# fragments of radial gradient pixmap to create rounded gradient outline rectangle
frags = [
# top-left corner
QPainter.PixmapFragment.create(
QPointF(tl.x() + radius / 2, tl.y() + radius / 2),
QRectF(0, 0, radius, radius)
),
# top-mid 'linear gradient'
QPainter.PixmapFragment.create(
QPointF(tl.x() + (br.x() - tl.x()) / 2, tl.y() + radius / 2),
QRectF(radius, 0, 1, radius),
scaleX=(br.x() - tl.x() - 2 * radius)
),
# top-right corner
QPainter.PixmapFragment.create(
QPointF(br.x() - radius / 2, tl.y() + radius / 2),
QRectF(radius, 0, radius, radius)
),
# left-mid 'linear gradient'
QPainter.PixmapFragment.create(
QPointF(tl.x() + radius / 2, tl.y() + (br.y() - tl.y()) / 2),
QRectF(0, radius, radius, 1),
scaleY=(br.y() - tl.y() - 2 * radius)
),
# mid solid
QPainter.PixmapFragment.create(
QPointF(tl.x() + (br.x() - tl.x()) / 2, tl.y() + (br.y() - tl.y()) / 2),
QRectF(radius, radius, 1, 1),
scaleX=(br.x() - tl.x() - 2 * radius),
scaleY=(br.y() - tl.y() - 2 * radius)
),
# right-mid 'linear gradient'
QPainter.PixmapFragment.create(
QPointF(br.x() - radius / 2, tl.y() + (br.y() - tl.y()) / 2),
QRectF(radius, radius, radius, 1),
scaleY=(br.y() - tl.y() - 2 * radius)
),
# bottom-left corner
QPainter.PixmapFragment.create(
QPointF(tl.x() + radius / 2, br.y() - radius / 2),
QRectF(0, radius, radius, radius)
),
# bottom-mid 'linear gradient'
QPainter.PixmapFragment.create(
QPointF(tl.x() + (br.x() - tl.x()) / 2, br.y() - radius / 2),
QRectF(radius, radius, 1, radius),
scaleX=(br.x() - tl.x() - 2 * radius)
),
# bottom-right corner
QPainter.PixmapFragment.create(
QPointF(br.x() - radius / 2, br.y() - radius / 2),
QRectF(radius, radius, radius, radius)
),
]
# draw icon background to pixmap
outPix = QPixmap(size.width(), size.height())
outPainter = QPainter(outPix)
outPainter.setPen(Qt.NoPen)
outPainter.drawPixmapFragments(frags,
gradientPixmap,
QPainter.PixmapFragmentHints(QPainter.OpaqueHint))
outPainter.end()
QPixmapCache.insert(key, outPix)
return outPix
